文章基本信息

标题：Evaluation of the Toxicity of Satureja intermedia C. A. Mey Essential Oil to Storage and Greenhouse Insect Pests and a Predator Ladybird
本地全文：下载
作者：Asgar Ebadollahi ; William N. Setzer
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2020
卷号：9
期号：6
页码：712-723
DOI：10.3390/foods9060712
出版社：MDPI Publishing
摘要：The use of chemical insecticides has had several side-effects, such as environmental contamination, foodborne residues, and human health threats. The utilization of plant-derived essential oils as efficient bio-rational agents has been acknowledged in pest management strategies. In the present study, the fumigant toxicity of essential oil isolated from Satureja intermedia was assessed against cosmopolitan stored-product insect pests: Trogoderma granarium Everts (khapra beetle), Rhyzopertha dominica (Fabricius) (lesser grain borer), Tribolium castaneum (Herbst) (red flour beetle), and Oryzaephilus surinamensis (L.) (saw-toothed grain beetle). The essential oil had significant fumigant toxicity against tested insects, which positively depended on essential oil concentrations and the exposure times. Comparative contact toxicity of S. intermedia essential oil was measured against Aphis nerii Boyer de Fonscolombe (oleander aphid) and its predator Coccinella septempunctata L. (seven-spot ladybird). Adult females of A. nerii were more susceptible to the contact toxicity than the C. septempunctata adults. The dominant compounds in the essential oil of S. intermedia were thymol (48.1%), carvacrol (11.8%), p-cymene (8.1%), and γ-terpinene (8.1%). The high fumigant toxicity against four major stored-product insect pests, the significant aphidicidal effect on A. nerii, and relative safety to the general predator C. septempunctata make terpene-rich S. intermedia essential oil a potential candidate for use as a plant-based alternative to the detrimental synthetic insecticides.
关键词：Aphis nerii ; Coccinella septempunctata ; plant-based insecticide; Oryzaephius surinamensis ; Rhyzopertha dominica ; Tribolium castaneum ; Trogoderma granarium Aphis nerii ; Coccinella septempunctata ; plant-based insecticide ; Oryzaephius surinamensis ; Rhyzopertha dominica ; Tribolium castaneum ; Trogoderma granarium